petsc-3.11.4 2019-09-28
TSErrorWeightedNorm
compute a weighted norm of the difference between two state vectors based on supplied absolute and relative tolerances
Synopsis
#include "petscts.h"
PetscErrorCode TSErrorWeightedNorm(TS ts,Vec U,Vec Y,NormType wnormtype,PetscReal *norm,PetscReal *norma,PetscReal *normr)
Collective on TS
Input Arguments
| ts | - time stepping context
|
| U | - state vector, usually ts->vec_sol
|
| Y | - state vector to be compared to U
|
| wnormtype | - norm type, either NORM_2 or NORM_INFINITY
|
Output Arguments
norm -weighted norm, a value of 1.0 achieves a balance between absolute and relative tolerances
norma -weighted norm, a value of 1.0 means that the error meets the absolute tolerance set by the user
normr -weighted norm, a value of 1.0 means that the error meets the relative tolerance set by the user
Options Database Keys
-ts_adapt_wnormtype <wnormtype> -2, INFINITY
See Also
TSErrorWeightedNormInfinity(), TSErrorWeightedNorm2(), TSErrorWeightedENorm
Level
developer
Location
src/ts/interface/ts.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages